In one illustrious study of love (“human sexual selection”) in 1986, psychologists David Buss and Michael Barnes asked people to rank 76 characteristics: What do you value most in a potential mate?

The winner wasn’t beauty, and it wasn’t wealth. Number one was "kind and understanding," followed by "exciting personality" and then "intelligent." Men did say they valued appearances more highly than women did, and women said they valued "good earning capacity" more highly than men did—but neither ranked measures of physical attractiveness or socioeconomic status among their top considerations.

People, though, are liars. Experiments that don’t rely on self-reporting regularly show that physical attractiveness is exquisitely, at times incomparably, important to both men and women. Status (however you want to measure it: income, formal education, et cetera) is often not far behind. In real-life dating studies, which get closer to genuine intentions, physical attractiveness and earning potential strongly predict romantic attraction.

While people tend to prefer people similar to themselves in terms of traits like religiousness or thriftiness, when it comes to beauty and income, more is almost always seen as better. On these “consensually-ranked” traits, people seem to aspire to partners who rank more highly than themselves. They don’t want a match so much as a jackpot.

The stereotypical example of that is known in sociology as a “beauty-status exchange”—an attractive person marries a wealthy or otherwise powerful person, and both win. It’s the classic story of an elderly polymath-billionaire who has sustained damning burns to the face who marries a swimsuit model who can’t find Paris on a map but really wants to go there, because it’s romantic.

All you need is money or power, the notion goes, and beautiful lovers present themselves to you for the taking.

"Being nice is not really buying you any currency in the attractiveness realm."

When Homer Simpson once came into a 500-pound surfeit of sugar, his id instinct was to turn it into fortune and sexual prosperity. “In America," he said, half dreaming after a night spent guarding the mound in his backyard, "first you get the sugar, then you get the power, then you get the women.” That’s an homage to Scarface (in the movie the quote was “money” instead of “sugar”), and it’s where both Simpson and Tony Montana went emphatically astray.

University of Notre Dame sociologist Elizabeth McClintock has done exhaustive research on the idea of people exchanging traits. Her work was published last month in American Sociological Review, looking at data from 1,507 couples in various stages of relationships, including dating, cohabiting, and married. “Beauty-status exchange accords with the popular conception of romantic partner selection as a competitive market process,” McClintock wrote, “a conception widely accepted in both popular culture and academia.” She referred specifically to the gendered version, “in which an economically successful man partners with a beautiful 'trophy wife,'" as commonplace.

But McClintock found that outside of ailing tycoons and Donald Trump, in the practical world it basically doesn’t exist. Where it does, it doesn’t last. The dominant force in mating is matching.

What appears to be an exchange of beauty for socioeconomic status is often actually not an exchange, McClintock wrote, but a series of matched virtues. Economically successful women partner with economically successful men, and physically attractive women partner with physically attractive men.

“Sometimes you hear that really nice guys get hot girls,” McClintock told me, “[but] I found that really nice guys get really nice girls. [Being nice] is not really buying you any currency in the attractiveness realm. If the guys are hot, too, then sure, they can get a hot girl.”

Because people of high socioeconomic status are, on average, rated as more physically attractive than people of lower status, many correlations between one partner's appearance and the other partner's status are spurious and misconstrued.

“Women spend a lot more time trying to look good than men do,” McClintock said. “That creates a lot of mess in this data. If you don’t take that into account then you actually see there’s a lot of these guys who are partnered with women who are better looking than them, which is just because, on average, women are better looking. Men are partnering 'up' in attractiveness. And men earn more than women—we’ve got that 70-percent wage gap—so women marry 'up' in income. You’ve got to take these things into account before concluding that women are trading beauty for money.”

"A lot of guys are partnered with women who are better looking than them, which is just because, on average, women are better looking."

The study concludes that women aren’t really out for men with more wealth than themselves, nor are men looking for women who outshine them in beauty. Rather, hearteningly, people really are looking for ... compatibility and companionship. Finding those things is driven by matching one's strengths with a partner who’s similarly endowed, rather than trying to barter kindness for hotness, humor for conscientiousness, cultural savvy for handyman-ship, or graduate degrees for marketable skills.

At least partly because physically attractive individuals are treated preferentially by the world at large, they enjoy improved school performance, greater occupational success, and higher earnings. So these variables can be hard to isolate.

“It would be very hard to separate out class and attractiveness,” McClintock said, “because they’re just so fundamentally linked. I can’t control for that—but I don’t see how anybody could.”

Past research has found that both physical attractiveness and education “help a woman achieve upward mobility through marriage (defined as marrying a man of higher occupational status than her father),” McClintock noted in the journal article, “and help her marry a man of high occupational status, in absolute terms.” But these studies regularly excluded any evaluation of the men’s physical attractiveness, and so didn’t address the simple fact that it might just be two attractive people being attracted to one another, probably in attractive clothes in an attractive place, both perpetually well slept. Any “exchange” was an illusion.

McClintock has also found that the pervasive tendency toward rating higher-status people as more attractive seems to perpetuate itself . "Because of that," she said, "there’s a bias toward seeing women who are married to high-status men—who are themselves high-status—as being more attractive. It creates this self-affirming circle where we never even stop to ask if we perceive the man as good-looking. We just say she’s good-looking, he’s high status—and she’s good-looking in part because the couple is high-status."

“Assuming that the importance of beauty and status is gendered may cause researchers to overlook men’s attractiveness and women’s socioeconomic resources,” Eli Finkel, a psychologist at Northwestern University, toldNew York magazine, praising McClintock’s work. In so doing, scientists misidentify matching as exchange.

“Scientists are humans, too,” Finkel claimed, “and we can be inadvertently blinded by beliefs about how the world works. The studies that only looked at men’s (but not women’s) income and only looked at women’s (but not men’s) attractiveness were problematic in that way, as was the peer review process that allowed flawed papers like that to be published.”

“It trivializes the importance of women’s careers in a social sense."

“Controlling for both partners’ physical attractiveness may not eliminate the relationship between female beauty and male status,” McClintock wrote, “but it should at least reduce this relationship substantially.”

Even as its pervasiveness in popular culture is waning, the gendered beauty-status exchange model is harmful in several insidious ways, McClintock said. “It trivializes the importance of women’s careers in a social sense: It’s telling women that what matters is your looks, and your other accomplishments and qualities don’t matter on the partner market. The truth is, people are evaluating women for their looks, and they’re evaluating men for their looks. Women are as shallow as men when it comes to appearance, and they should focus on their own accomplishments. If women want an accomplished guy, that’s going to come with being accomplished.”

So this is just one more place where upward mobility is, it seems, a myth. But in this case, no love is lost. Within the gendered beauty-status exchange model, physical attractiveness “might enable class mobility for women,” yes, McClintock wrote, but not without ensuring the women’s economic dependency on her husband and anachronistically ignoring her valuation of his physical attractiveness.

“It also sets up this idea of marriage being mercenary,” McClintock said, “which doesn’t fit with our usual conception that we kind of like our spouse and we want someone that we get along with. It’s not just this trade of his money for her beauty, and he’s going to dump her as soon as she starts to get some wrinkles around her eyes.”